Infertility doctor says my tubes may close again 😢

So it’s been 2 weeks since my laparoscopic surgery to unblock my tubes because they were of course blocked 😞 I went in today and doctor says my tubes aren’t good but he opened them for me he wants me to do <a href="https://glowing.com/glow-fertility-program">IVF</a> if I don’t become pregnant with in 3 months he says my tubes could end up closing again very soon but I don’t understand why that will happen I went through fucking hell after that surgery and now I might have to do it again I’m so tired and depressed I only got this last chance to try to get pregnant naturally since my tubes are finally open but if I can’t I have to try to save up for expensive <a href="https://glowing.com/glow-fertility-program">IVF</a> and get my tubes removed and I don’t want that 😢😢 has anyone tubes ever opened back or have you became pregnant after opening your tubes with laparoscopic?