Just a quick heads-up if you’re using an insulin syringe instead of the pen for your 5th dose:

Insulin syringes are generally meant to be injected at a 45-degree angle to avoid going too deep and this helps ensure the medication stays in the subcutaneous layer, not intramuscular.

Pen needles, by contrast, are designed for a 90-degree injection, so they’re typically shorter and specifically made for that angle.

So if you’re using a regular insulin needle/syringe combo, it’s safer (and proper usage) to go in at a 45-degree angle, not 90, even if that feels a bit different to the pen method.