All Abortion should be legal up to 20 weeks of pregnancy

My opponent seems to have admitted that there is a difference between the embryo and a fully-formed baby or child. They use the phrase "life begins at conception". Sure, An organism is clearly alive from the point of conception but does that make it a human-life? My opponent seems to believe that it does. They claim that life should begin at conception because it's the only place you can clearly draw a line. But just because you can draw a line easily at that point that doesn't mean that it's factually correct to say life begins at that point. My question is: what makes an embryo a human being? If my opponent asserts this then are they against emergency contraceptives which in their definition are killing a human life? I assert that an embryo is not a human being. And even if it were its rudimentary existence does not qualify it to enjoy the same rights as a mother. I say 20 weeks because scientists agree that this is the rough point in time where the fetus can feel a sufficient amount of pain to make the abortion immoral. Also abortions are often unsafe beyond this point. This is why much legislation is fitted around the 20 week mark. It's not perfect but it's the most accurate and fair point to draw the line at. My opponent further agrees with me that the mother is more of a human than the fetus is. But they then fail to see the next step after that which says that the more human something is the more rights it should get. If a mother has consciousness and sentience and can feel pain, Then they can endure much more suffering than the fetus could ever. Therefore, It is fair to prioritise the mother's right to not endure pain than the fetus' right to life. Furthermore, It's not just the mother that feels pain. As I explained, The mother is connected to other human beings and the suffering of that mother will cause the suffering of yet more people. This is sufficient to outweigh the right of the fetus to life. Now, I'm not that interested in the rape case although I do see it as an even stronger case for reproductive rights. All women may not be experts in science and philosophy but they are experts in their own lives. If they know that they will have a worse life if they have the baby then I trust them to know whether they should require an abortion. Yes, They should be aware of consequences but often pregnancy isn't their fault and furthermore some consequences shouldn't be endured. The consequence of one bad decision should not be a life of pain and sadness. In other words, I think that a having a baby which destroys much of your life is too harsh a consequence for a mistake made often by ill educated, Young people. Secondly, The retribution is already endured in the form of the abortion itself. Abortion is not a nice process and it is enough to serve as a reminder to people about the importance of sexual self-responsibility. To conclude, A fetus may be a human life but it is not a human being. Human beings are more valuable and can feel more pain. Thus the mother's rights are paramount. And therefore, She has the right to take control of her own body and make a decision that will positively benefit her sentient, Self-conscious, Pain-filled life more than it will cause harm to a collection of cells with far less value or sentience.