Any help?

So.. a little back story. I have PCOS. Back in March I took clomid. Got pregnant. Sadly, lost the baby about three months later. Had a d&c. And now. Here I am. Almost 4 weeks after the d&c and I’m not sure what’s going on. In the last two days or so, I have been having mild heartburn/ acid reflux having to go to the bathroom A LOT and yesterday I started having light pinkish/ brownish spotting with mild to no cramping. Since we lost the baby we decided to get a few things in place and let my body heal before trying again so we have been using condoms (for the last part of the baby dance only) anyone else have these types of things happen after a miscarriage? Oh. I also have had two very very faint positive hcg tests.