8 weeks postpartum bleeding and summer

So pretty sure I got my period already. I stopped bleeding around 3-4 weeks and had some lochia. Then around 5-6 weeks I started spotting again and the lochia smell gradually went away. Now I have consistent red blood the odd lochia smell but only a few times this week I’ve smelled it. Midwife thinks it’s period and I’m cleared to have sex... do you think it’s okay to wear a tampon? It’s summer and I want to relax by the pool but pads don’t really allow for that. I’m also nervous if it is lochia that I’ll get an infection wearing a tampon... advice?