I was ordering some bio oil on Amazon (it's less than half the price online than in store!!) and if I got my total to 35 the shipping would be free so I thought why not order some sunscreen ...it's so hot here in Phoenix AZ so I googled what's best to use in pregnancy but a lot of sites weren't very clear. I did see coppertone 30 so I just ordered that. is this a good brand for pregnancy?